Have you installed any 'ad-blocker' programs on the machine you are having problems, and also the other machines?.
Do you use Avast, and you do, did the recent Avast update advice that you download Abode Air, and you installed that?.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?